CN115094669A

CN115094669A - Production equipment and process for producing laminated anti-toppling paper cup

Info

Publication number: CN115094669A
Application number: CN202210775521.9A
Authority: CN
Inventors: 唐宏霞
Original assignee: Wuhan Xinyatai Technology Co ltd
Current assignee: Wuhan Xinyatai Technology Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-09-23
Anticipated expiration: 2042-07-01
Also published as: CN115094669B

Abstract

The application relates to production equipment and a process for producing a film-coated anti-dumping paper cup, relates to the field of paper cup production equipment, and aims to solve the problem of low efficiency of corona processing of the existing base paper; the corona component comprises an installation base and two groups of corona machines, the installation base is arranged on the rack, the two groups of corona machines are arranged on the installation base, and the two groups of corona machines are respectively arranged on two sides of the base paper; and the control mechanism is used for controlling the opening and closing of the two groups of corona machines. This application has the start-up and shut through control corona machine, can select to carry out the corona to one side of body paper or carry out the corona simultaneously to the both sides of body paper, and operating personnel can realize the start-up of arbitrary a set of or two sets of corona machines through control mechanism, need not to open and close corona machine again through stopping to carry the body paper, improves the effect of the corona machining efficiency of body paper.

Description

Production equipment and process for producing laminated anti-toppling paper cup

Technical Field

The application relates to the field of paper cup production equipment, in particular to production equipment and a process for producing a laminated anti-toppling paper cup.

Background

The paper cup is a paper container formed by mechanically processing and bonding base paper made of chemical wood pulp, has the advantages of safety, sanitation, lightness, convenience and the like, is widely applied to public places such as restaurants, dining rooms and the like, is usually made of laminating paper, and needs to be subjected to corona treatment before laminating, so that the adhesion performance of the base paper to a laminating layer is improved.

Chinese patent publication No. CN206186395U discloses a corona machine, which comprises a frame, a feeding roller, a discharging roller, and a corona assembly, wherein the corona assembly is arranged above the frame, the feeding roller is arranged at the front end of the corona assembly, and the discharging roller is arranged at the rear end of the corona assembly; the corona assembly comprises a body paper front corona assembly and a body paper back corona assembly, the body paper front corona assembly and the body paper back corona assembly can work simultaneously, one of the body paper front corona assembly and the body paper back corona assembly can also work, and body paper single-sided or double-sided corona can be achieved.

In view of the above-mentioned related art, the inventors found that the following drawbacks exist: during staff's control body paper front corona subassembly and body paper reverse side corona subassembly, need separately operate, when carrying out the corona to one side or both sides of body paper, need close feeding roller and discharge roller, adjust the back when positive corona subassembly of body paper and body paper reverse side corona subassembly, carry out the corona again, troublesome poeration reduces the machining efficiency of body paper.

Disclosure of Invention

In order to improve the processing efficiency of base paper, the application provides a production facility and technology for producing drench membrane and prevent empting paper cup.

The application provides a production facility for producing drench membrane and prevent empting paper cup adopts following technical scheme:

a production device for producing a laminating anti-toppling paper cup comprises a frame and a conveying mechanism for conveying raw paper, wherein the frame is provided with a control mechanism and a corona assembly;

the corona component comprises an installation base and two groups of corona machines, the installation base is arranged on the rack, the two groups of corona machines are arranged on the installation base, and the two groups of corona machines are respectively arranged on two sides of the base paper;

the control mechanism is used for controlling the opening and closing of the two groups of corona machines.

Through adopting above-mentioned technical scheme, conveying mechanism carries the body paper, and two sets of corona machine set up respectively in the both sides of body paper, through the opening and closing of control corona machine, can select to carry out the corona to one side of body paper or carry out the corona simultaneously to the both sides of body paper, and operating personnel can realize the start-up of arbitrary a set of or two sets of corona machine through control mechanism, need not to open and close the corona machine again through stopping carrying the body paper, and convenient operation improves the corona machining efficiency of body paper.

Optionally, the control mechanism includes an electric console, the corona assembly further includes two sets of conducting rods, the two sets of conducting rods are respectively and correspondingly electrically connected with the corona machine, two sets of inserting holes are formed in the electric console, conducting blocks electrically connected with the electric console are arranged in the inserting holes, and one ends of the conducting rods are movably abutted to the conducting blocks.

Through adopting above-mentioned technical scheme, the conducting block sets up in the spliced eye on the automatically controlled platform, and operating personnel is difficult for the contact, improves the security performance, and the conducting rod inserts in the spliced eye with the conducting block contact to can make the corona machine start, and the distance of two sets of conducting rods is close, and the staff's operation of being convenient for reduces intensity of labour.

Optionally, the mounting base is provided with a first elastic element for driving the conducting rod to be inserted into the insertion hole, and the control mechanism further includes two sets of positioning assemblies for fixing the position of the conducting rod respectively.

Through adopting above-mentioned technical scheme, during first elastic component promoted the conducting rod automatic insertion spliced eye, need not manual operation and remove the conducting rod, it is more convenient to use, makes the contact more stable between conducting rod and the conducting block simultaneously, improves the result of use of corona machine, and when the conducting rod of reverse slip, locating component realizes fixing the position of conducting rod to can make the outage of corona machine, the use stops.

Optionally, the positioning assembly comprises a sliding block, a clamping rod and a second elastic piece, the sliding block is arranged on the electric control table in a sliding mode, the clamping rod is arranged on the sliding block, the second elastic piece drives the sliding block to slide to enable the clamping rod to be abutted to the outer wall of the conducting rod, and a clamping groove matched with the clamping rod in a clamped mode is formed in the outer wall of the conducting rod.

Through adopting above-mentioned technical scheme, slip conducting rod and conducting block break away from the back, the corona machine outage, and second elastic component promotes the slider and makes the draw-in groove joint on card pole and the conducting rod outer wall to make the rigidity of conducting rod, and the position of conducting rod is stable, makes the card pole break away from with the outer wall of conducting rod when the slider that slides, and first elastic component promotes the conducting rod, thereby the conducting rod contacts with the conducting block, makes the use of corona machine circular telegram.

Optionally, a pressing plate is slidably arranged on the electric control table, and the pressing plate is movably abutted to the two groups of sliding blocks.

Through adopting above-mentioned technical scheme, behind the sliding pressure plate, can two sets of slider motions of simultaneous drive, behind the draw-in groove on the card pole on the slider and the conducting rod outer wall breaks away from, first elastic component promotes the conducting rod and removes, and two sets of conducting rods insert simultaneously in the spliced eye with the conducting block contact, realize two sets of corona machine simultaneous start, it is more convenient to use, reduces workman intensity of labour.

Optionally, the two groups of corona machines are arranged on the mounting base in a sliding manner along a direction perpendicular to the base paper, and a driving assembly for driving the corona machines to move is arranged on the mounting base.

Through adopting above-mentioned technical scheme, drive assembly drive corona machine moves along the direction of perpendicular to body paper to can adjust the distance between corona machine and the body paper, make and keep suitable distance between corona machine and the body paper, in order to improve the corona effect to the body paper.

Optionally, the drive assembly includes two sets of stoppers and threaded rod, and is two sets of the stopper set up respectively in corresponding on the corona machine, set up the spout with stopper slip adaptation on the installation base, the threaded rod rotate connect in on the installation base, the axis of rotation direction of threaded rod is the same with the direction of motion of corona machine, the threaded rod is worn to establish the stopper and with stopper threaded connection adaptation.

Through adopting above-mentioned technical scheme, rotate the threaded rod and can drive the stopper and remove in the spout to the position that drives the corona machine removes, makes the corona machine comparatively stable at the removal in-process, and rotates threaded rod easy operation, is convenient for adjust the position of corona machine, further reduces workman's intensity of labour.

Optionally, it is two sets of the threaded rod is located the coaxial ring gear that is provided with in the one end that the threaded rod is close to each other, be provided with the gear on the installation base and be used for drive gear pivoted driving piece, the axis of rotation direction of gear is the same with the axis of rotation direction of threaded rod, gear and two sets of ring gear swing joint.

Through adopting above-mentioned technical scheme, behind the mobile gear, make the ring gear meshing on gear and the two threaded rods, driving piece drive gear rotates and can drive two sets of ring gears simultaneously and rotate, and then drives two sets of threaded rods and rotate simultaneously to adjust the position of two sets of stoppers simultaneously, realize adjusting the position of two sets of corona machines simultaneously, improve the efficiency of adjusting the corona machine position.

Optionally, the installation base is provided with a sliding base in a sliding manner along the direction perpendicular to the rotating axis of the threaded rod, the gear and the driving piece are both arranged on the sliding base, the installation base is provided with a rotating rod in a threaded manner, the rotating axis of the rotating rod is the same as the moving direction of the sliding base, and one end of the rotating rod is rotatably connected to the sliding base.

Through adopting above-mentioned technical scheme, the rotation takes place to drive the dwang, and the dwang can be followed perpendicular to threaded rod axis of rotation direction and moved to promote the motion of sliding bottom, make gear and two sets of ring gear meshing or break away from, realize connecting into a whole or make two sets of threaded rod separation with two sets of threaded rods, easy operation is convenient, improves the availability factor.

The application also provides a process for producing the production equipment for the laminated anti-toppling paper cup, which adopts the following technical scheme:

a process for producing a laminated anti-toppling paper cup comprises the following steps:

the method comprises the following steps: the distance between the corona machine and the base paper is adjusted, and the limiting block and the corona machine are driven to move along the direction vertical to the base paper by rotating the threaded rod, so that the distances between the two groups of corona machines and the base paper can be respectively changed;

step two: the sliding base is moved to enable the gear to be meshed with the two groups of toothed rings, and when the driving piece drives the gear to rotate, the two groups of toothed rings and the threaded rod can be driven to rotate simultaneously, so that the positions of the two groups of corona machines are adjusted simultaneously;

step three: the clamping rod is separated from the clamping groove by sliding the sliding block, and the first elastic piece pushes the conductive rod to be inserted into the inserting hole to be contacted with the conductive block, so that a group of corona machines are started to perform corona on one side of the base paper;

step four: the two groups of sliding blocks can be driven to slide simultaneously through the sliding pressing plate, so that the two groups of corona machines can be started simultaneously, and corona is carried out on two sides of the base paper.

In summary, the present application includes at least the following advantageous technical effects:

the corona machine comprises a conveying mechanism, two groups of corona machines, a corona machine and a control mechanism, wherein the conveying mechanism is used for conveying base paper, the two groups of corona machines are respectively arranged on two sides of the base paper, corona can be carried out on one side of the base paper or on two sides of the base paper simultaneously by controlling the opening and closing of the corona machines, an operator can start any one group or two groups of corona machines through the control mechanism, the corona machines do not need to be opened and closed after the base paper is conveyed, the corona machine is convenient to operate, and the corona processing efficiency of the base paper is improved;

after the conductive rod is separated from the conductive block by sliding, the corona machine is powered off, the second elastic piece pushes the sliding block to enable the clamping rod to be clamped with the clamping groove in the outer wall of the conductive rod, so that the position of the conductive rod is fixed, the position of the conductive rod is stable, when the sliding block enables the clamping rod to be separated from the outer wall of the conductive rod, the first elastic piece pushes the conductive rod, the conductive rod is contacted with the conductive block, the corona machine is powered on for use, and after the pressing plate is slid, the two groups of sliding blocks can be driven to move simultaneously, so that the two groups of corona machines are powered on for use;

can drive the stopper through rotating the threaded rod and remove in the spout, thereby drive the position removal of corona machine, adjust the distance between corona machine and the body paper, make and keep suitable distance between corona machine and the body paper, in order to improve the corona effect to the body paper, through removing sliding base, make the tooth ring meshing on gear and two threaded rods, driving piece drive gear rotates and can drive two sets of tooth ring rotations simultaneously, and then drive two sets of threaded rods and rotate simultaneously, with the position of adjusting two sets of stoppers simultaneously, realize adjusting the position of two sets of corona machines simultaneously, improve the efficiency of adjusting the corona machine position.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is an enlarged view of the part A of FIG. 1;

FIG. 3 is a schematic diagram of the overall structure of the driving assembly according to the embodiment of the present application;

fig. 4 is an enlarged schematic view of a part B in fig. 3.

Reference numerals: 1. a frame; 2. a conveying mechanism; 3. a control mechanism; 31. an electric control console; 311. inserting holes; 312. pressing a plate; 32. a positioning assembly; 321. a slider; 322. a clamping rod; 323. a second elastic member; 324. a card slot; 4. a corona assembly; 41. installing a base; 411. a chute; 42. a corona machine; 43. a conductive rod; 44. a first elastic member; 5. a drive assembly; 51. a limiting block; 52. a threaded rod; 53. a toothed ring; 54. a gear; 55. a drive member; 56. a sliding base; 57. rotating the rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a production facility for producing drench membrane and prevent empting paper cup.

Referring to fig. 1, a production facility for producing drench membrane and prevent empting paper cup includes frame 1 and sets up conveying mechanism 2 in frame 1, control mechanism 3, corona subassembly 4 and drive assembly 5, carry the body paper through conveying mechanism 2, wherein corona subassembly 4 includes two sets of corona machine 42, two sets of corona machine 42 set up respectively in the both sides of body paper, can control the start-up and the closing of two sets of corona machine 42 through control mechanism 3, the realization is to the single face or the two-sided corona that carries out of body paper, drive assembly 5 can drive corona machine 42 motion, thereby adjust the distance between corona machine 42 and the body paper, improve the corona effect of body paper.

Referring to fig. 1, for the realization is carried the body paper, rotate in frame 1 and be connected with the multiunit conveying roller and be used for driving conveying roller pivoted driving motor, the multiunit conveying roller all is the level setting and is parallel to each other, and the body paper is around locating the multiunit conveying roller on, driving motor drive conveying roller rotates in order to realize carrying the body paper.

Referring to fig. 3-4, in order to realize the installation and movement of the two groups of corona machines 42, the corona assembly 4 further comprises an installation base 41, the installation base 41 is fixedly installed on the frame 1, and the two groups of corona machines 42 are arranged on the installation base 41 in a sliding manner along a direction perpendicular to the base paper;

in order to drive the corona machine 42 to move, the driving assembly 5 comprises two groups of limiting blocks 51 and a threaded rod 52, the two groups of corona machines 42 are respectively and fixedly installed on the corresponding limiting blocks 51, a sliding groove 411 matched with the limiting blocks 51 in a sliding mode is formed in the installation base 41, the threaded rod 52 is rotatably connected to the installation base 41, the rotating axis direction of the threaded rod 52 is the same as the moving direction of the corona machine 42, the threaded rod 52 penetrates through the limiting blocks 51 and is matched with the limiting blocks 51 in a threaded connection mode, two groups of first rotating motors are arranged on the installation base 41, the two groups of threaded rods 52 are respectively and coaxially and fixedly connected to the output shaft ends of the corresponding first rotating motors, and the threaded rod 52 is driven to rotate by driving the first rotating motors, so that the limiting blocks 51 are driven to move to drive the corona machines 42 to move;

in order to drive the two groups of corona machines 42 to simultaneously approach or leave the base paper, the two groups of threaded rods 52 are positioned on the same axis, one ends of the two groups of threaded rods 52 which are close to each other are coaxially and fixedly connected with toothed rings 53, a sliding base 56 is arranged on the mounting base 41 in a sliding manner along a direction perpendicular to the rotating axis of the threaded rods 52, a driving piece 55 is arranged on the sliding base 56, in the embodiment, the driving piece 55 is a second rotating motor, an output shaft of the second rotating motor is coaxially and fixedly connected with a gear 54, the rotating axis direction of the gear 54 is the same as the rotating axis direction of the threaded rods 52, a rotating rod 57 is connected on the mounting base 41 in a threaded manner, the rotating axis of the rotating rod 57 is the same as the moving direction of the sliding base 56, one end of the rotating rod 57 is rotatably connected on the sliding base 56, the sliding base 56 can be pushed to move by the rotation of the rotating rod 57, and the gear 54 is movably meshed with the two groups of toothed rings 53 after the sliding base 56 moves, after the gear 54 and two sets of ring gears 53 all mesh, start the second rotating electrical machines and can drive gear 54 and rotate, gear 54 rotates and can drive two sets of ring gears 53 simultaneously and rotate, and then drives two sets of threaded rods 52 and rotate simultaneously to adjust the position of two sets of stopper 51 simultaneously, realize adjusting two sets of corona machines 42's position simultaneously.

Referring to fig. 1-2, in order to facilitate controlling the start and the stop of two sets of corona machines 42, the corona assembly 4 further includes two sets of conductive rods 43, the two sets of conductive rods 43 are respectively electrically connected to the corresponding corona machines 42, the control mechanism 3 includes an electrical console 31 and two sets of positioning assemblies 32 respectively used for fixing the positions of the conductive rods 43, two sets of insertion holes 311 are formed on the electrical console 31, conductive blocks (not shown) electrically connected to the electrical console 31 are fixedly connected in the insertion holes 311, one end of the conductive rod 43 is movably abutted to the conductive blocks, after the conductive rod 43 is contacted to the conductive blocks, the corresponding corona machine 42 is electrically started, a first elastic member 44 is fixedly connected to the mounting base 41, in this embodiment, the first elastic member 44 is a first spring, the axis of the first spring is the same as the moving direction of the conductive rod 43, and the other end of the first spring is fixedly connected to the conductive rod 43, the first spring pushes the conducting rod 43 to abut against the conducting block, the first spring is compressed by pulling the conducting rod 43 to move, the conducting rod 43 is separated from the conducting block, and the corona machine 42 is powered off;

in order to fix the position of the conductive rod 43 after moving, the positioning assembly 32 includes a slider 321, a clamping rod 322, and a second elastic member 323, the slider 321 is slidably disposed on the console 31, and the clamping rod 322 is fixedly connected to the slider 321, in this embodiment, the second elastic member 323 is a second spring, the second spring drives the slider 321 to slide so that the clamping rod 322 abuts against the outer wall of the conductive rod 43, the outer wall of the conductive rod 43 is fixedly connected to a clamping groove 324 adapted to be clamped with the clamping rod 322, and the clamping rod 322 is inserted into the clamping groove 324 so that the position of the conductive rod 43 is fixed;

when two sets of conducting rods 43 all break away from with the conducting block, the card pole 322 is fixed to the position of two sets of conducting rods 43, in order to make two sets of corona machines 42 switch on simultaneously and start, it is provided with clamp plate 312 to slide on the automatically controlled platform 31, clamp plate 312 and two sets of sliders 321 activity butt, behind the slide clamp plate 312, can drive two sets of sliders 321 motions simultaneously, card pole 322 on the slider 321 breaks away from the back with draw-in groove 324 on the conducting rod 43 outer wall, first elastic component 44 promotes conducting rod 43 and removes, two sets of conducting rods 43 insert in spliced eye 311 simultaneously and contact with the conducting block, realize that two sets of corona machines 42 start simultaneously.

The embodiment of the application also discloses a production facility for producing the drench membrane and prevent empting paper cup.

The process for producing the production equipment for the laminating anti-toppling paper cup comprises the following steps:

the method comprises the following steps: the distance between the corona machine 42 and the base paper is adjusted, and the limit block 51 and the corona machine 42 are driven to move along the direction vertical to the base paper by rotating the threaded rod 52, so that the distances between the two groups of corona machines 42 and the base paper can be respectively changed;

step two: the sliding base 56 is moved to enable the gear 54 to be meshed with the two groups of toothed rings 53, and when the driving piece 55 drives the gear 54 to rotate, the two groups of toothed rings 53 and the threaded rod 52 can be driven to rotate simultaneously, so that the positions of the two groups of corona machines 42 can be adjusted simultaneously;

step three: the clamping rod 322 is separated from the clamping groove 324 by sliding the sliding block 321, and the first elastic piece 44 pushes the conductive rod 43 to be inserted into the inserting hole 311 to be contacted with the conductive block, so that a group of corona machines 42 are started to perform corona on one side of the base paper;

step four: the two sets of sliding blocks 321 can be driven to slide simultaneously through the sliding pressing plate 312, so that the two sets of corona machines 42 are started simultaneously, and corona is carried out on two sides of the base paper.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a production facility for producing drench membrane and prevent empting paper cup, includes frame (1) and conveying mechanism (2) that are used for carrying the body paper, its characterized in that: the machine frame (1) is provided with a control mechanism (3) and a corona component (4);

the corona component (4) comprises a mounting base (41) and two groups of corona machines (42), the mounting base (41) is arranged on the rack (1), the two groups of corona machines (42) are arranged on the mounting base (41), and the two groups of corona machines (42) are respectively arranged on two sides of the base paper;

the control mechanism (3) is used for controlling the opening and closing of the two groups of corona machines (42).

2. The production equipment for producing the laminated anti-tipping paper cup according to claim 1, is characterized in that: control mechanism (3) include electric control platform (31), corona subassembly (4) still include two sets of conducting rod (43), and are two sets of conducting rod (43) respectively with correspond corona machine (42) electric connection, two sets of spliced eye (311) have been seted up on electric control platform (31), be provided with the conducting block with electric control platform (31) electric connection in spliced eye (311), the one end and the conducting block activity butt of conducting rod (43).

3. The production equipment for producing the laminated anti-tipping paper cup according to claim 2, is characterized in that: the mounting base (41) is provided with a first elastic piece (44) for driving the conducting rod (43) to be inserted into the inserting hole (311), and the control mechanism (3) further comprises two groups of positioning components (32) which are respectively used for fixing the position of the conducting rod (43).

4. The production equipment for producing the laminated anti-tipping paper cup according to claim 3, is characterized in that: locating component (32) include slider (321), kelly (322) and second elastic component (323), slider (321) slide set up in on electric console (31), kelly (322) set up on slider (321), second elastic component (323) drive slider (321) slide make kelly (322) with the outer wall butt of conducting rod (43), be provided with on conducting rod (43) outer wall with draw-in groove (324) of kelly (322) joint adaptation.

5. The production equipment for producing the laminated anti-tipping paper cup according to claim 4, is characterized in that: the electric control table (31) is provided with a pressing plate (312) in a sliding mode, and the pressing plate (312) is movably abutted to the two groups of sliding blocks (321).

6. The production equipment for producing the laminated anti-tipping paper cup according to claim 1, is characterized in that: the two groups of corona machines (42) are arranged on the mounting base (41) in a sliding mode along the direction perpendicular to the base paper, and a driving assembly (5) used for driving the corona machines (42) to move is arranged on the mounting base (41).

7. The production equipment for producing the laminated anti-tipping paper cup according to claim 6, is characterized in that: drive assembly (5) include two sets of stopper (51) and threaded rod (52), and are two sets of stopper (51) set up respectively in corresponding on corona machine (42), set up spout (411) with stopper (51) slip adaptation on installation base (41), threaded rod (52) rotate connect in on installation base (41), the axis of rotation direction of threaded rod (52) is the same with the direction of motion of corona machine (42), stopper (51) and stopper (51) threaded connection adaptation are worn to establish in threaded rod (52).

8. The production equipment for producing the laminated anti-tipping paper cup according to claim 7, is characterized in that: the two sets of threaded rods (52) are located on the same axis, two sets of threaded rods (52) are coaxially provided with toothed rings (53) at one ends close to each other, a gear (54) and a driving piece (55) used for driving the gear (54) to rotate are arranged on the mounting base (41), the rotating axis direction of the gear (54) is the same as that of the threaded rods (52), and the gear (54) is movably meshed with the two sets of toothed rings (53).

9. The production equipment for producing the laminated anti-tipping paper cup according to claim 8, is characterized in that: install and slide base (56) along perpendicular to threaded rod (52) axis of rotation direction slip on base (41), gear (54) and driving piece (55) all set up on slide base (56), threaded connection has dwang (57) on installation base (41), the axis of rotation of dwang (57) is the same with the direction of motion of slide base (56), the one end of dwang (57) is rotated and is connected on slide base (56).

10. A process for producing a production device for a laminated anti-toppling paper cup is characterized by comprising the following steps: the method comprises the following steps:

the method comprises the following steps: the distance between the corona machine (42) and the base paper is adjusted, and the limit block (51) and the corona machine (42) are driven to move along the direction vertical to the base paper by rotating the threaded rod (52), so that the distances between the two groups of corona machines (42) and the base paper can be respectively changed;

step two: the sliding base (56) is moved to enable the gear (54) to be meshed with the two groups of toothed rings (53), and when the driving piece (55) drives the gear (54) to rotate, the two groups of toothed rings (53) and the threaded rod (52) can be driven to rotate simultaneously, so that the positions of the two groups of corona machines (42) are adjusted simultaneously;

step three: the clamping rod (322) is separated from the clamping groove (324) by sliding the sliding block (321), and the first elastic piece (44) pushes the conductive rod (43) to be inserted into the inserting hole (311) to be contacted with the conductive block, so that a group of corona machines (42) is started to perform corona on one side of the base paper;

step four: the two groups of sliding blocks (321) can be driven to slide simultaneously through the sliding pressing plate (312), so that the two groups of corona machines (42) are started simultaneously, and corona is carried out on two sides of the base paper.